//
//  Executer.swift
//  Tiercel
//
//  Created by Daniels on 2019/4/30.
//  Copyright © 2019 Daniels. All rights reserved.
//
//  Permission is hereby granted, free of charge, to any person obtaining a copy
//  of this software and associated documentation files (the "Software"), to deal
//  in the Software without restriction, including without limitation the rights
//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
//  copies of the Software, and to permit persons to whom the Software is
//  furnished to do so, subject to the following conditions:
//
//  The above copyright notice and this permission notice shall be included in
//  all copies or substantial portions of the Software.
//
//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
//  THE SOFTWARE.
//

import Foundation

public typealias Handler<T> = (T) -> ()

public struct Executer<T> {
    private let onMainQueue: Bool
    private let handler: Handler<T>?

    public init(onMainQueue: Bool, handler: Handler<T>?) {
        self.onMainQueue = onMainQueue
        self.handler = handler
    }
    

    public func execute(_ object: T) {
        if let handler = handler {
            if onMainQueue {
                DispatchQueue.tr.executeOnMain {
                    handler(object)
                }
            } else {
                handler(object)
            }
        }
    }
}
